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Hi,
In TIBCConnection component I pointed out the correct fbclient.dll path to connect to FireBird but I get this error in design time only (at run time it load normally)


but if I used 32bit dll the component connect normally at design time! Any idea why is that ?

I use Windows 7 64bit and Delphi XE5. The project is compiled for 64bit too.

If you attempt to establish connection in the IDE, you should use the 32-bit fbclient.dll library, since the IDE is a 32-bit application.

I see, many thanks.

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After upgrading to new firebird version 2.5.4 I am facing the same problem, I was able to connect to my database at design time when I use this dll

C:\Program Files\Firebird\Firebird_2_5_4\WOW64\fbclient.dll

but when I run the application (without debugging) and try to use same dll I get error "cannot load fbclient.dll"

If I hard coded the path to:

C:\Program Files\Firebird\Firebird_2_5_4\bin\fbclient.dll

I was able to connect !! is it the dll under WOW64 is the 64bit version and I should be able to connect at run time to this dll ? why the contrary is happening ?

This, most likely, occurs, because you have installed the 64-bit Firebird 2.5.4. The bin folder of the 64-bit version of Firebird contains the 64-bit client library, and the WOW64 folder contains the 32-bit client library. Therefore, when you run your compiled 64-bit application using C:\Program Files\Firebird\Firebird_2_5_4\WOW64\fbclient.dll, you are getting a corresponding error.

I thought the WOW64 has the 64bit version !! thanks Viktor

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